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प्रश्न
The pressure in a liquid at two points in the same horizontal plane are equal. Consider an elevator accelerating upward and a car accelerating on a horizontal road. The above statement is correct in
विकल्प
the car only
the elevator only
both of them
neither of them
उत्तर
the elevator only
The two points in the same horizontal line will not have equal pressure if the liquid is accelerated horizontally. There should be vertical acceleration.
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संबंधित प्रश्न
1 kgf = .............. (nearly).
The unit of thrust is ..........
The unit of pressure is .........
The pressure and thrust are related as
Define the term ‘pressure’ and state its unit.
How is the thrust related to pressure?
It is easier to cut with a sharp knife than with a blunt one. Explain.
Find the area of a body which experiences a pressure of 50000 Pa by a thrust of 100 N?
How much thrust will be required to exert a pressure of 20,000 Pa on an area of 1 cm2.
Consider the situation of the previous problem. Let the water push the left wall by a force F1 and the right wall by a force F2.
In a hydraulic lift, the input piston had surface area 30 cm2 and the output piston has surface area of 1500 cm2. If a force of 25 N is applied to the input piston, calculate weight/force on output piston.
Analogy
Broader straps: ______:: Thin needles: ______.
Explain why the cutting instruments are sharpened.
Fluids in general are ______.
It is easy to compress a gas whereas liquids are ______.
The net force in a particular direction is called ______.
The pressure in mines is ______ than the sea level.
Upthrust = weight of the fluid displaced – apparent weight of the object.
